/Engine/Source/Editor/BlueprintGraph/Classes/K2Node.h
virtual void PostRemovedOldPin ( [FOptionalPinFromProperty](API\Editor\BlueprintGraph\FOptionalPinFromProperty) & Record, int32 ArrayIndex, [FProperty](API\Runtime\CoreUObject\UObject\FProperty) * Property, uint8 * PropertyAddress, uint8 * DefaultPropertyAddress ) const